Slicers - Pending clock icon showing and slicers not filtering

[jack3]

Today all of the slicers on one page of my report have this error appear when you select one of the drop down options (Not yet applied) with the pending clock icon. What makes this strange is that none of the other slicers on other pages in my report are impact by this, even though they share the same data source. 

I have found a temporary work around solution with the 'Button' - 'Apply all Slicers', but this isn't really a long term solution. 

Appreciate any help with this. 

[lbendlin]

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